Mouth-inhaler.



W. H. 'DE FORD.

MOUTH INHALER, APPLIOATION FILED FEB. 20, 1912.

1,050,620, PatentedJan. 14, 1913.

UNITED STATES PATENT OFFICE.

WILLIAM H. DE FORD, OF DES MOINES, IOWA, ASSIGNOR T0 E. DE 'IREY 8Z7 SONS, OF PHILADELPHIA, PENNSYLVANIA, A PARTNERSHIP.

MOUTH-INHALER.

Specification of Letters Patent.

Patented Jan. 14, 1913.

To all whom it may concern.

Be it known that I, WILLIAM H. DE FORD, a citizen of the United States, residing in Des Moines, Iowa, have invented certain Improvements in Mouth-Inhalers, of which the following is a specification.

One object of my invention is to provide a structure particularly adapted for use in administering anesthetics through the mouth, and more particularly has to do with a novel form of lnhaler especially adapted to fit the mouth of a patient so as to permit of the passage of a gaseous anesthetic.

Another object of the invention is to provide an inhaler especially adapted for the administration of anesthetics through the mouth; the arrangement of parts being such as to permit of free access to the nose, and eyes, in order that these organs or their associated parts may be operated on, and, at the same time provide a firm rest or support for the hand of the operator.

These objects and other advantageous ends I secure, as hereinafter set forth, relerence being had to the accompanying drawings, in which Figure 1 is a side elevation of my inhaler showing it as employed for the administration of an anesthetic by the mouth; Fig. 2 is a front elevation of the inhaler; and Fig. 3 is a vertical, longitudinal section taken on the line aa, Fig. 2.

In the above drawings the inhaler is illustrated as consisting of a single integral metal or other structure 1 having a tubular mouth-piece 2, designed to enter the mouth of the patient; its interior being in connection with a tubular portion at the opposite end of the inhaler through a relatively flat passage 4 in the body of the inhaler structure. The tubular end 3 is designed for connection to any of the well known forms of conduits through which a gaseous anesthetic may be delivered and it will be noted that the side portions of the upper part of the inhaler structure are flared, as indicated at 5, to form a mouth cover. These side extensions project above the tubular mouthpiece 2 and are united to form a portion 6 designed to fit over the upper lip of a patient. In addition the inhaler structure is provided with a projecting rib 7, designed to connect the lower portions of said members 5 and to fit closely against the lower portion of the lower lip of a patient; the construction and shape of the parts being such as to provide a tube fitting the upper lip, from which it extends downwardly over the corners of the mouth and across the lower portion of the lower lip.

It is to be noted that the outer part of the inhaler opposite the tube 2 is relatively flat and with the part 6 is so formed as not to linterfere with the free access to the nos tri s.

Under operating conditions the inhaler is held in place by a strap 8 which engages suitable projections 9 and rests upon the face of a patient in the position shown in Fig. 1 (it being understood that the head is supported in the proper position) under which conditions an anesthetic may be delivered to the patient through the passages 8, 4:, and 2; the flat outer surface of the inhaler providing convenient rest for the hand of a surgeon operating on the nose.

If desired an inflatable rubber rim 10 may be mounted in any suitable manner upon the edges or face portion of the inhaler for the purpose of preventing leakage of air and to provide a cushion between the face of the patient and the inhaler.

I claim:

1. The combination in an inhaler of an integral structure consisting of a concave body formed to fit the face of a patient, and provided with a peripheral flange; a mouth tube projecting from substantially the center of said concave body; and a supply pipe lntegral with the mouth tube extending substantially at right angles to the latter and formed to fit the chin of a patient.

2. The combination in an inhaler of an integral structure consisting of a concave body formed to fit the face of a patient, and provided with a peripheral flange; an integral mouth tube projecting from substantially. the center of said concave body;

and a supply pipe integral with the mouth name to this specification, in the presence of piece; said supply pipe projecting substantwo subscribing witnesses. tially at right angles to the general line of the mouth tube and being indented beyond WILLIAM DE FORD said peripheral flange so as to fit the pa- Witnesses:

tients chm. EDGAR T. FEE,

In testimony whereof, I have signed my EDWIN Pnoo'ron.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patent:- Washington, D. 0. 

